Sponsor/Patron Around The 1900s

I’ve been reading some true-crime cases about rich society people and crime and these are around 1870 - 1920.

A bunch typically have a woman who wants to be an opera singer and she finds a patron, to “sponsor” her studies, usually in Paris or New York.

Or other things too, like a poet or a writer etc.

What exactly was the arrangement? Did the sponsor get something from the patron? My first thought was sex, but a lot of the sponsors seem to old ladies, (well maybe?) but it doesn’t seem like that was always the case.

Still I find it hard to think someone just says “OK I’ll cover your living expenses in Paris for three years while you write a poem or learn to sing opera.” Did they get a percentage of that person’s earnings or something?

Isn’t this just a scholarship by another name?

It’s PR. Everyone knows who the artist’s patron is, so if the artist becomes famous, he or she increases the patron’s prestige.

“This poem has been brought to you by…”

Also buys personal access once the student becomes a big star.